hcg vs gonadorelin

hcg (S-tier) vs gonadorelin (C-tier). mechanism, trials, evidence boundaries, dosing literature. side-by-side reference.

hcg · tier S

A placental glycoprotein hormone that activates the LH receptor. Product form and labeled route matter.

HCG has established fertility and selected male endocrine uses. Small human studies support intratesticular-testosterone and semen preservation during testosterone therapy, but that adjunct use remains off-label. HCG does not cause weight loss.

32 to 33 h terminal half-life in an 18-woman Pregnyl crossover · half-life 32 to 33 hours in one Pregnyl IM and SC crossover · libido

gonadorelin · tier C

Native-sequence GnRH with real historical pump and diagnostic uses. Pulse timing determines whether the signal works.

Pulsatile gonadorelin restored ovulation in hypothalamic amenorrhea and has human evidence in GnRH-deficient men. Occasional US clinic injections for TRT do not reproduce those pump protocols and have no controlled fertility-preservation result.

91% to 96% ovulation in 109 women given pulsatile therapy · half-life about 4 minutes after intravenous administration · libido

at a glance

• hcg: tier S · 32 to 33 h terminal half-life in an 18-woman Pregnyl crossover
• gonadorelin: tier C · 91% to 96% ovulation in 109 women given pulsatile therapy

reptides grades the research record and cites the literature behind every call. research reference only; not medical advice.